199 lines
5.7 KiB
ReStructuredText
199 lines
5.7 KiB
ReStructuredText
.. _stm32f412g_disco_board:
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ST STM32F412G Discovery
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#######################
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Overview
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********
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The STM32F412 Discovery kit features an ARM Cortex-M4 based STM32F412ZG MCU
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with a wide range of connectivity support and configurations Here are
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some highlights of the STM32F412G-DISCO board:
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- STM32F412ZGT6 microcontroller featuring 1 Mbyte of Flash memory and 256 Kbytes of RAM in an LQFP144 package
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- On-board ST-LINK/V2-1 SWD debugger supporting USB re-enumeration capability:
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- USB virtual COM port
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- mass storage
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- debug port
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- 1.54 inch 240x240 pixel TFT color LCD with parallel interface and capacitive touchscreen
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- I2S Audio CODEC, with a stereo headset jack, including analog microphone input and a loudspeaker output
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- Stereo digital MEMS microphones
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- MicroSD card connector extension
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- I2C extension connector
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- 128 Mbit Quad-SPI Nor Flash
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- Reset button and Joystick
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- Four color user LEDs.
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- USB OTG FS with Micro-AB connector
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- Four power supply options:
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- ST-LINK/V2-1 USB connector
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- User USB FS connector
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- VIN from Arduino* connectors
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- + 5 V from Arduino* connectors
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- Two power supplies for MCU: 2.0 V and 3.3 V
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- Compatible with Arduino(tm) Uno revision 3 connectors
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- Extension connector for direct access to various features of STM32F412ZGT6 MCU
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- Comprehensive free software including a variety of examples, part of STM32Cube package
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.. image:: img/en.32F412GDISCOVERY.jpg
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:width: 700px
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:align: center
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:height: 522px
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:alt: STM32F412G-DISCO
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More information about the board can be found at the `32F412GDISCOVERY website`_.
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Hardware
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********
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STM32F469I-DISCO Discovery kit provides the following hardware components:
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- STM32F412ZGT6 in LQFP144 package
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- ARM |reg| 32-bit Cortex |reg| -M4 CPU with FPU
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- 100 MHz max CPU frequency
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- VDD from 1.7 V to 3.6 V
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- 1 MB Flash
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- 256 KB SRAM
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- GPIO with external interrupt capability
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- LCD parallel interface, 8080/6800 modes
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- 1x12-bit ADC with 16 channels
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- RTC
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- Advanced-control Timer
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- General Purpose Timers (12)
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- Watchdog Timers (2)
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- USART/UART (4)
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- I2C (4)
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- SPI (5)
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- SDIO
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- 2xCAN
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- CRC calculation unit
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- True random number generator
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- DMA Controller
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More information about STM32F412ZG can be found here:
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- `STM32F412ZG on www.st.com`_
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- `STM32F412 reference manual`_
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Supported Features
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==================
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The Zephyr stm32f412g_disco board configuration supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| UART | on-chip | serial port-polling; |
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| | | serial port-interrupt |
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+-----------+------------+-------------------------------------+
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| PINMUX | on-chip | pinmux |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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Other hardware features are not yet supported on Zephyr porting.
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The default configuration can be found in the defconfig file:
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``boards/arm/stm32f412g_disco/stm32f412g_disco_defconfig``
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Pin Mapping
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===========
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STM32F412G-DISCO Discovery kit has 8 GPIO controllers. These controllers are responsible for pin muxing,
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input/output, pull-up, etc.
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For mode details please refer to `32F412GDISCOVERY board User Manual`_.
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Default Zephyr Peripheral Mapping:
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----------------------------------
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- UART_2_TX : PA2
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- UART_2_RX : PA3
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- LD1 : PE0
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- LD2 : PE1
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- LD3 : PE2
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- LD4 : PE3
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System Clock
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============
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STM32F412G-DISCO System Clock could be driven by internal or external oscillator,
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as well as main PLL clock. By default System clock is driven by PLL clock at 100MHz,
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driven internal oscillator.
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Serial Port
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===========
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The STM32F412G Discovery kit has up to 4 UARTs. The Zephyr console output is assigned to UART2.
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Default settings are 115200 8N1.
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Programming and Debugging
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*************************
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Applications for the ``stm32f412g_disco`` board configuration can be built and
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flashed in the usual way (see :ref:`build_an_application` and
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:ref:`application_run` for more details).
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Flashing
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========
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STM32F412G-DISCO Discovery kit includes an ST-LINK/V2 embedded debug tool interface.
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This interface is supported by the openocd version included in Zephyr SDK.
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Flashing an application to STM32F412G-DISCO
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-------------------------------------------
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Connect the STM32F412G-DISCO Discovery kit to your host computer using
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the USB port, then run a serial host program to connect with your
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board:
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.. code-block:: console
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$ minicom -D /dev/ttyACM0
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Then build and flash an application. Here is an example for the
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:ref:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: stm32f412g_disco
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:goals: build flash
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You should see the following message on the console:
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.. code-block:: console
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Hello World! arm
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Debugging
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=========
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You can debug an application in the usual way. Here is an example for the
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:ref:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: stm32f412g_disco
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:maybe-skip-config:
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:goals: debug
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.. _32F412GDISCOVERY website:
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http://www.st.com/en/evaluation-tools/32f412gdiscovery.html
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.. _32F412GDISCOVERY board User Manual:
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http://www.st.com/resource/en/user_manual/dm00275919.pdf
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.. _STM32F412ZG on www.st.com:
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http://www.st.com/en/microcontrollers/stm32f412zg.html
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.. _STM32F412 reference manual:
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http://www.st.com/resource/en/reference_manual/dm00180369.pdf
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